ITVI20080187A1 - ROLLER FINISHING MACHINE FOR NATURAL, LEATHER AND THE LIKE, WORKING WITH THE "SINCRO" COSIDDETTO METHOD. - Google Patents

ROLLER FINISHING MACHINE FOR NATURAL, LEATHER AND THE LIKE, WORKING WITH THE "SINCRO" COSIDDETTO METHOD.

Info

Publication number
ITVI20080187A1
ITVI20080187A1 IT000187A ITVI20080187A ITVI20080187A1 IT VI20080187 A1 ITVI20080187 A1 IT VI20080187A1 IT 000187 A IT000187 A IT 000187A IT VI20080187 A ITVI20080187 A IT VI20080187A IT VI20080187 A1 ITVI20080187 A1 IT VI20080187A1
Authority
IT
Italy
Prior art keywords
leather
machine
cylinder
roller
natural
Prior art date
Application number
IT000187A
Other languages
Italian (it)
Inventor
Gianni Maitan
Original Assignee
Ge Ma Ta Spa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ge Ma Ta Spa filed Critical Ge Ma Ta Spa
Priority to ITVI2008A000187A priority Critical patent/IT1390925B1/en
Priority to ES09162652T priority patent/ES2358237T3/en
Priority to DE602009000461T priority patent/DE602009000461D1/en
Priority to EP09162652A priority patent/EP2154255B1/en
Priority to AT09162652T priority patent/ATE492654T1/en
Publication of ITVI20080187A1 publication Critical patent/ITVI20080187A1/en
Application granted granted Critical
Publication of IT1390925B1 publication Critical patent/IT1390925B1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C14—SKINS; HIDES; PELTS; LEATHER
    • C14B—MECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
    • C14B1/00—Manufacture of leather; Machines or devices therefor
    • C14B1/44—Mechanical treatment of leather surfaces
    • C14B1/56—Ornamenting, producing designs, embossing

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Soil Working Implements (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)

Abstract

The finding concerns a machine for roller finishing natural skins, leather and the like, also called "coating machine" or "spreading machine", in which the skins (P) are conveyed by a lower roller or by a belt (5) and where an upper spreading roller, made up of a gravure cylinder (1), pressing down on the surface (S2) of the skin, countered by the underlying cylinder or belt, deposits a film of liquid product (C), previously distributed on the surface (S1) of the aforementioned upper roller, through a doctor blade (R), onto the aforementioned surface. Such a machine is characterized in that the spreading roller of the gravure cylinder (1), which operates with "synchro" mode, rotates in a direction in agreement with the advancing of the skin and comprises a metal cylindrical drum (2), covered, on the outer part, by a layer of elastic material (3) with high elasticity and deformability, the surface (4) of which is incised.

Description

Descrizione Description

Il presente trovato riguarda la realizzazione di una macchina per la rifinizione a rullo di pelli naturali, cuoio e simili, funzionante con il metodo cosiddetto “sincro†; il trovato riguarda inoltre l’utilizzazione di un cilindro inciso, di tipo in sé noto, da utilizzare nella macchina di cui sopra . The present invention relates to the production of a roller finishing machine for natural leathers, leather and the like, operating with the so-called â € œsincroâ € method; the invention also relates to the use of an engraved cylinder, of a per se known type, to be used in the above machine.

Come à ̈ noto, per l’esecuzione dell’operazione di rifinizione nel campo della conceria sono particolarmente usate delle macchine spalmatrici a rulli, dette comunemente “tamponatrici†, nelle quali la pelle viene trasportata tramite un rullo inferiore o un tappeto e dove un contrapposto rullo di spalmatura superiore, costituito da un cilindro inciso in acciaio, premendo sulla superficie della pelle, contrastata dal sottostante cilindro o tappeto, provvede a depositare sulla suddetta superficie una pellicola di prodotto liquido, precedentemente distribuita sulla superficie del suddetto rullo superiore, mediante una racla. As is known, for the execution of the finishing operation in the tannery field, roller spreading machines are particularly used, commonly known as `` buffing machines '', in which the leather is transported by means of a lower roller or a carpet and where an opposed upper coating roller, consisting of an engraved steel cylinder, by pressing on the surface of the leather, contrasted by the underlying cylinder or carpet, deposits on the aforementioned surface a film of liquid product, previously distributed on the surface of the aforesaid upper roller, using a doctor blade.

La perfetta riuscita dell’operazione di rifinizione delle pelli, oltre che da un regolare e costante trascinamento del prodotto nella zona di spalmatura, cioà ̈ quella compresa fra il rullo superiore ed il sottostante rullo inferiore o il tappeto di trasporto, dipende soprattutto dall’azione di spalmatura o “tamponatura†, cioà ̈ dall’azione di deposito del prodotto liquido su tutta la superficie del materiale da trattare. The perfect success of the leather finishing operation, as well as a regular and constant dragging of the product into the coating area, that is, the one between the upper roller and the underlying lower roller or the conveyor belt, depends above all on the Spreading action or â € œcamponaturaâ €, that is from the action of depositing the liquid product on the entire surface of the material to be treated.

Tale lavorazione risulta problematica, poiché le pelli sono di spessore irregolare e la superficie non à ̈ mai perfettamente piana, ma presenta degli avvallamenti e delle concavità e tutto ciò impedisce un totale ed uniforme contatto fra la superfìcie del rullo spalmatore e la superficie del materiale da trattare. This processing is problematic, since the hides are of irregular thickness and the surface is never perfectly flat, but has hollows and concavities and all this prevents total and uniform contact between the surface of the spreading roller and the surface. of the material to be treated.

Α1Γ atto pratico, il prodotto chimico, trattenuto all’interno delle incisioni, dette comunemente “alveoli†ed incavate sulla superficie del cilindro spalmatore, viene rilasciato o solo sulle zone superficiali della pelle, tralasciando le cavità e gli intagli della pelle stessa, quando si effettua una lavorazione di copertura o solo sulle incisioni, avvallamenti, cavità e graffi quando si esegue un’operazione di stuccatura. Analogamente, non à ̈ possibile distribuire uniformemente piccole quantità di prodotto di rifinizione sulla superficie di pelli stampate (finto fiore, dollaro, coccodrillo), dove il prodotto si deposita sulla superficie e non sugli intagli (effetto “millepunti†), per cui si rende necessario impiegare un’altra tecnologia di rifinizione, quella di spruzzatura del prodotto chimico sulla pelle mediante aerografi. Î'1Î "practical act, the chemical product, retained inside the incisions, commonly called â € œalveoliâ € and hollowed out on the surface of the spreading cylinder, is released either only on the superficial areas of the skin, leaving out the cavities and notches of the leather itself, when making a covering process or only on the incisions, hollows, cavities and scratches when carrying out a grouting operation. Similarly, it is not possible to uniformly distribute small quantities of finishing product on the surface of printed leathers (faux flower, dollar, crocodile), where the product is deposited on the surface and not on the carvings (â € œmillepuntiâ € effect), so makes it necessary to use another finishing technology, that of spraying the chemical product on the leather using airbrushes.

Scopo del presente trovato à ̈ la realizzazione di una macchina per la rifinizione a rullo delle pelli, cuoio e simili, nella quale il cilindro inciso di spalmatura, che ruota in “sincro†, ovvero con verso concorde a quello di avanzamento della pelle, posizionato al di sopra del rullo inferiore o del tappeto di trasporto, deposita uniformemente il prodotto chimico su tutta la superficie della pelle, sia sulle punte e sugli avallamenti, che sulle cavità e sugli intagli. The purpose of the present invention is to produce a machine for the roller finishing of hides, leather and the like, in which the engraved coating cylinder, which rotates in `` synchro '', i.e. with a direction concordant with that of advancement of the leather, positioned above the lower roller or the conveyor belt, it uniformly deposits the chemical product on the entire surface of the leather, both on the tips and depressions, and on the cavities and notches.

Tale scopo à ̈ ottenuto impiegando un rullo superiore di spalmatura, costituito da un cilindro metallico, la cui superficie à ̈ ricoperta da un materiale elastico ad alta deformabilità, quale un elastomero o delle gomme naturali o sintetiche, che si porta a contatto con l’intera superficie della pelle, adattandosi a tutto il suo profilo, ovvero con la parte piana, con le eventuali sporgenze ed anche con gli avvallamenti, le incisioni, gli intagli e le concavità. This purpose is achieved by using an upper coating roller, consisting of a metal cylinder, the surface of which is covered with a highly deformable elastic material, such as an elastomer or natural or synthetic rubbers, which comes into contact with the ™ entire surface of the leather, adapting to its entire profile, ie with the flat part, with any protrusions and also with the hollows, incisions, notches and concavities.

II trovato verrà meglio compreso mediante la descrizione di una sua possibile forma di realizzazione, resa a solo scopo non limitativo, con l’aiuto delle tavole di disegno allegate, dove: The invention will be better understood by means of the description of a possible embodiment thereof, provided for non-limiting purposes only, with the help of the attached drawing tables, where:

- la fig. 1 (tav. I) rappresenta una vista schematica prospettica della macchina per la rifinizione di cui al trovato; - fig. 1 (table I) represents a schematic perspective view of the finishing machine according to the invention;

- la fig. 2 (tav. II) rappresenta una vista frontale del rullo spalmatore o cilindro inciso di cui al trovato; - fig. 2 (table II) shows a front view of the spreading roller or engraved cylinder according to the invention;

- la fig. 3 rappresenta una vista laterale del cilindro inciso, sezionato secondo la linea III-III di fig.2; - fig. 3 represents a side view of the engraved cylinder, sectioned along the line III-III of fig. 2;

- la fig. 4 rappresenta una vista in dettaglio della zona di contatto cilindro inciso/pelle. - fig. 4 represents a detailed view of the engraved cylinder / skin contact area.

Come visibile dalle figure, il rullo superiore o cilindro inciso della macchina di rifinizione, indicato complessivamente con il riferimento 1 e che opera nella modalità “sincro†o “diretta†, comprende un fusto in metallo 2 ricoperto, sulla sua parte esterna, con uno strato di materiale elastico ad alta deformabilità 3, la cui superficie incisa 4 trasporta il prodotto ricoprente liquido, quale del colorante o del fissativo “C†, dalla racla “R†, fino al deposito sulla superficie “S2†della pelle “P†, sostenuta e trainata tramite un sottostante tappeto 5 o un rullo 6. As can be seen from the figures, the upper roller or engraved cylinder of the finishing machine, indicated as a whole with the reference 1 and which operates in the â € œsincroâ € or â € œdirectâ € mode, includes a metal barrel 2 covered, on its external part, with a layer of highly deformable elastic material 3, whose engraved surface 4 carries the liquid coating product, such as the dye or fixative â € œCâ €, from the â € œRâ € doctor blade, to the deposit on the â € œS2â € surface of the â € œPâ € leather, supported and pulled by an underlying carpet 5 or a roller 6.

Come visibile nella fig. 4 di dettaglio, con l’impiego del materiale elastico ad alta deformabilità 3 la superfìcie “SI†del cilindro inciso si deforma e ricopre esattamente il profilo della superficie “S2†della pelle “P†, ovvero si realizza il contatto completo fra le due suddette superfìci, sia nelle zone di sporgenza “H†, che nelle zone di concavità “K†, il tutto per ottenere un deposito regolare ed omogeneo del prodotto chimico. As can be seen in fig. 4 in detail, with the use of highly deformable elastic material 3 the surface â € œSIâ € of the engraved cylinder deforms and covers exactly the profile of the â € œS2â € surface of the skin â € œPâ €, that is, it is created the complete contact between the two aforesaid surfaces, both in the protruding areas â € œHâ €, and in the areas of concavity â € œKâ €, all to obtain a regular and homogeneous deposit of the chemical product.

Claims (10)

Rivendicazioni 1. MACCHINA PER LA RIFINIZIONE A RULLO DI PELLI NATURALI, CUOIO E SIMILI, detta anche “tamponatrice†o “spalmatrice†, nella quale le pelli (P) vengono trasportate da un rullo inferiore (6) o da un tappeto (5) e dove un rullo di spalmatura superiore, costituito da un cilindro inciso (1), premendo sulla superficie (S2) della pelle, contrastata dal sottostante cilindro o tappeto, provvede a depositare sulla suddetta superficie una pellicola di prodotto liquido (C), precedentemente distribuita sulla superficie (SI) del suddetto rullo superiore mediante una racla (R), detta macchina caratterizzandosi per il fatto che il rullo superiore di spalmatura o cilindro inciso (1), che opera con modalità “sincro†, ossia con il suddetto rullo spalmatore che ruota con verso concorde a quello di avanzamento della pelle, comprende un fusto cilindrico in metallo (2), ricoperto, sulla parte esterna, con imo strato di materiale elastico ad alta elasticità e deformabilità (3), la cui superficie (4) risulta incisa. Claims 1. MACHINE FOR THE ROLL-FINISHING OF NATURAL LEATHER, LEATHER AND SIMILAR LEATHER, also known as `` buffing machine '' or `` spreader '', in which the hides (P) are transported by a lower roller (6) or by a carpet (5 ) and where an upper coating roller, consisting of an engraved cylinder (1), pressing on the surface (S2) of the leather, contrasted by the underlying cylinder or carpet, deposits a film of liquid product (C) on the aforementioned surface, previously distributed on the surface (SI) of the aforementioned upper roller by means of a doctor blade (R), said machine being characterized by the fact that the upper spreading roller or engraved cylinder (1), which operates in the â € œsynchroâ € mode, that is with the aforementioned spreading roller that rotates in a direction concordant with that of the advancement of the leather, includes a cylindrical metal shaft (2), covered, on the outside, with a layer of high elasticity and deformability elastic material (3), whose surface (4) is engraved. 2. MACCHINA PER LA RIFINIZIONE A RULLO DI PELLI NATURALI, CUOIO E SIMILI, secondo la rivendicazione 1, caratterizzata dal fatto che lo strato esterno ad alta deformabilità (3) del cilindro inciso (1) presenta una durezza pari od inferiore a 40 Shore A. 2. MACHINE FOR THE ROLL-FINISHING OF NATURAL LEATHER, LEATHER AND THE LIKE, according to claim 1, characterized in that the high deformability outer layer (3) of the engraved cylinder (1) has a hardness equal to or less than 40 Shore A . 3. MACCHINA PER LA RIFINIZIONE A RULLO DI PELLI NATURALI, CUOIO E SIMILI, secondo la rivendicazione (2), caratterizzato dal fatto che lo strato esterno (3) del cilindro inciso (2) à ̈ realizzato con un elastomero. 3. MACHINE FOR THE ROLL FINISHING OF NATURAL LEATHER, LEATHER AND THE LIKE, according to claim (2), characterized in that the outer layer (3) of the engraved cylinder (2) is made of an elastomer. 4. MACCHINA PER LA RIFINIZIONE A RULLO DI PELLI NATURALI, CUOIO E SIMILI, secondo la rivendicazione 2, caratterizzato dal fatto che lo strato esterno (3) del cilindro inciso (2) à ̈ realizzato in gomma naturale. 4. MACHINE FOR THE ROLL FINISHING OF NATURAL LEATHER, LEATHER AND THE LIKE, according to claim 2, characterized in that the outer layer (3) of the engraved cylinder (2) is made of natural rubber. 5. MACCHINA PER LA RIFINIZIONE DI PELLI NATURALI, CUOIO E SIMILI, secondo la rivendicazione 2, caratterizzata dal fatto che lo strato esterno (3) del cilindro inciso (2) à ̈ realizzato in gomma sintetica. 5. MACHINE FOR FINISHING NATURAL LEATHER, LEATHER AND THE LIKE, according to claim 2, characterized in that the outer layer (3) of the engraved cylinder (2) is made of synthetic rubber. 6. UTILIZZAZIONE DI UN CILINDRO INCISO, composto da un fusto cilindrico in metallo (2), ricoperto, sulla sua parte esterna, con uno strato di materiale (3) ad alta elasticità e deformabilità, sul quale à ̈ presente la porzione incisa (4), in una macchina per la rifinizione a rullo di pelli naturali, cuoio e simili, che opera in condizioni “sincro†, secondo una o più delle rivendicazioni da 1 a 5. 6. USE OF AN ENGRAVED CYLINDER, consisting of a cylindrical metal stem (2), covered, on its external part, with a layer of high elasticity and deformability material (3), on which there is the engraved portion (4 ), in a machine for the roller finishing of natural leathers, leather and the like, which operates in â € œsincroâ € conditions, according to one or more of claims 1 to 5. 7. UTILIZZAZIONE, secondo la rivendicazione 6, caratterizzata dal fatto di prevedere che lo strato esterno di materiale ad alta elasticità e deformabilità (3), presente sulla parte esterna del fusto cilindrico metallo (2), à ̈ realizzato con un materiale con durezza pari o inferiore a 40 Shore A. 7. USE, according to claim 6, characterized in that the external layer of highly elastic and deformable material (3), present on the external part of the cylindrical metal stem (2), is made of a material with equal hardness or less than 40 Shore A. 8. UTILIZZAZIONE, secondo la rivendicazione 7, caratterizzata dal fatto di prevedere che lo strato esterno (3) del cilindro à ̈ realizzato con un elastomero. 8. USE, according to claim 7, characterized in that the outer layer (3) of the cylinder is made of an elastomer. 9. UTILIZZAZIONE, secondo la rivendicazione 7, caratterizzata dal fatto di prevedere che lo strato esterno (3) del cilindro (1) à ̈ realizzato con gomma naturale. 9. USE, according to claim 7, characterized in that the outer layer (3) of the cylinder (1) is made of natural rubber. 10. UTILIZZAZIONE, secondo la rivendicazione 7, caratterizzata dal fatto di prevedere che lo strato esterno (3) del cilindro (1) à ̈ realizzato con gomma10. USE, according to claim 7, characterized in that the outer layer (3) of the cylinder (1) is made of rubber
ITVI2008A000187A 2008-08-05 2008-08-05 ROLLER FINISHING MACHINE FOR NATURAL, LEATHER AND THE LIKE, WORKING WITH THE "SINCRO" COSIDDETTO METHOD. IT1390925B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
ITVI2008A000187A IT1390925B1 (en) 2008-08-05 2008-08-05 ROLLER FINISHING MACHINE FOR NATURAL, LEATHER AND THE LIKE, WORKING WITH THE "SINCRO" COSIDDETTO METHOD.
ES09162652T ES2358237T3 (en) 2008-08-05 2009-06-15 MACHINE FOR FINISHING WITH ROLLER OF NATURAL SKIN, LEATHER AND SIMILAR, THAT WORKS WITH THE NAME METHOD "SYNCHRONIZED".
DE602009000461T DE602009000461D1 (en) 2008-08-05 2009-06-15 Machine for the finishing of natural skins, leather and the like via rollers, operated by the so-called "synchronous method"
EP09162652A EP2154255B1 (en) 2008-08-05 2009-06-15 Machine for roller finishing natural skins, leather and the like, functioning with the so-called "synchro" method
AT09162652T ATE492654T1 (en) 2008-08-05 2009-06-15 MACHINE FOR THE PREPARATION OF NATURAL SKINS, LEATHER AND SIMILAR OVER ROLLERS, OPERATED WITH THE SO-CALLED SYNCHRONOUS METHOD

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITVI2008A000187A IT1390925B1 (en) 2008-08-05 2008-08-05 ROLLER FINISHING MACHINE FOR NATURAL, LEATHER AND THE LIKE, WORKING WITH THE "SINCRO" COSIDDETTO METHOD.

Publications (2)

Publication Number Publication Date
ITVI20080187A1 true ITVI20080187A1 (en) 2010-02-06
IT1390925B1 IT1390925B1 (en) 2011-10-19

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
ITVI2008A000187A IT1390925B1 (en) 2008-08-05 2008-08-05 ROLLER FINISHING MACHINE FOR NATURAL, LEATHER AND THE LIKE, WORKING WITH THE "SINCRO" COSIDDETTO METHOD.

Country Status (5)

Country Link
EP (1) EP2154255B1 (en)
AT (1) ATE492654T1 (en)
DE (1) DE602009000461D1 (en)
ES (1) ES2358237T3 (en)
IT (1) IT1390925B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3150728A1 (en) 2015-10-02 2017-04-05 GE.MA.TA. S.p.A. Machine for roller finishing natural hides and leather

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3103887B1 (en) * 2015-06-11 2019-03-27 GE.MA.TA. S.p.A. Machine for continuous dyeing of leather goods
ITUA20161537A1 (en) * 2016-03-10 2017-09-10 Ge Ma Ta Spa LINE TO FINISH LEADS THAT CONTINUE AND AUTOMATICALLY LEAD TO THE ENTIRE FINISHING CYCLE
IT201700037050A1 (en) * 2017-04-04 2018-10-04 Ge Ma Ta Spa APPARATUS FOR THE CONTINUOUS DEPOSITION OF TWO DIFFERENT CHEMICAL SUBSTANCES ON A SKIN AND A CONTINUOUS DEPOSITION METHOD
IT201800007456A1 (en) * 2018-07-24 2020-01-24 MACHINE FOR THE FINISHING OF FLEXIBLE LAMINARY SURFACES FOR COVERING OBJECTS

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3623444A1 (en) * 1985-07-17 1987-01-22 Schmidt Alexander Gmbh Continuous-flow pressing and ironing machine for leather
DE202006003489U1 (en) * 2005-05-27 2006-05-04 Schaefer, Philipp Leather embossing apparatus using an applied plastics dispersion has a preheater arranged in the conveyor zone before the embossing gap

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3623444A1 (en) * 1985-07-17 1987-01-22 Schmidt Alexander Gmbh Continuous-flow pressing and ironing machine for leather
DE202006003489U1 (en) * 2005-05-27 2006-05-04 Schaefer, Philipp Leather embossing apparatus using an applied plastics dispersion has a preheater arranged in the conveyor zone before the embossing gap

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3150728A1 (en) 2015-10-02 2017-04-05 GE.MA.TA. S.p.A. Machine for roller finishing natural hides and leather

Also Published As

Publication number Publication date
ES2358237T3 (en) 2011-05-06
ATE492654T1 (en) 2011-01-15
EP2154255A1 (en) 2010-02-17
EP2154255B1 (en) 2010-12-22
IT1390925B1 (en) 2011-10-19
DE602009000461D1 (en) 2011-02-03

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